Thermally Activated Dissipation in Bi2.2Sr2Ca0.8Cu2O8+

T. T.M. Palstra, B. Batlogg, L. F. Schneemeyer, J. V. Waszczak

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A new dissipation behavior is reported in superconducting Bi2.2Sr2Ca0.8Cu2O8+ for all temperatures below Tc and all magnetic fields exceeding Hc1. The current-independent electrical resistivity is thermally activated and can be described by an Arrhenius law with a single prefactor and a magnetic-field- and orientation-dependent activation energy U0(H,). This behavior is markedly different from past observations and will be discussed in terms of flux creep and flux flow. This thermally activated behavior implies a finite resistance at all temperatures and all fields exceeding Hc1 determined by the activation energy as the only parameter.

Original languageEnglish
Pages (from-to)1662-1665
Number of pages4
JournalPhysical Review Letters
Issue number14
StatePublished - 1988


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